Overview

During the summer of 1860, I was surprised by finding how large a number of insects were caught by the leaves of the common sun-dew (Drosera rotundifolia) on a heath in Sussex. I had heard that insects were thus caught, but knew nothing further on the subject.

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Overview

During the summer of 1860, I was surprised by finding how large a number of insects were caught by the leaves of the common sun-dew (Drosera rotundifolia) on a heath in Sussex. I had heard that insects were thus caught, but knew nothing further on the subject.

Table of Contents

1. Drosera rotundifolia, or the common sun-dew; 2. The movements of the tentacles from the contact of solid bodies; 3. Aggregation of the protoplasm within the cells of the tentacles; 4. The effects of heat on the leaves; 5. The effects of non-nitrogenous and nitrogenous organic fluids on the leaves; 6. The digestive power of the secretion of Drosera; 7. The effects of salts of ammonia; 8. The effects of various other salts, and acids, on the leaves; 9. The effects of certain alkaloid poisons, other substances and vapours; 10. On the sensitiveness of the leaves, and on the lines of transmission of the motor impulse; 11. Recapitulation of the chief observations on Drosera rotundifolia; 12. On the structure and movements of some other species of Drosera; 13. Dionaea muscipula; 14. Aldrovanda vesiculosa; 15. Drosophyllum, Roridula, Byblis, glandular hairs of other plants, concluding remarks on the Droseraceae; 16. Pinguicula; 17. Utricularia; 18. Utricularia (continued); Index.

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